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redhatRedHatRHSA-2018:3656
HistoryNov 26, 2018 - 11:00 p.m.

(RHSA-2018:3656) Important: kernel-alt security and bug fix update

2018-11-2623:00:21
access.redhat.com
222

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

43.6%

JSON

The kernel-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

  • kernel: Use-after-free in the vmacache_flush_all function resulting in a possible privilege escalation (CVE-2018-17182)

  • kernel: Privilege escalation on arm64 via KVM hypervisor (CVE-2018-18021)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

These updated kernel packages include also numerous bug fixes. Space precludes documenting all of the bug fixes in this advisory. See the descriptions in the related Knowledge Article: https://access.redhat.com/articles/3714391

OSVersionArchitecturePackageVersionFilename
RedHat7ppc64lekernel-debug-devel< 4.14.0-115.2.2.el7akernel-debug-devel-4.14.0-115.2.2.el7a.ppc64le.rpm
RedHat7noarchkernel-doc< 4.14.0-115.2.2.el7akernel-doc-4.14.0-115.2.2.el7a.noarch.rpm
RedHat7aarch64python-perf< 4.14.0-115.2.2.el7apython-perf-4.14.0-115.2.2.el7a.aarch64.rpm
RedHat7s390xkernel-debuginfo< 4.14.0-115.2.2.el7akernel-debuginfo-4.14.0-115.2.2.el7a.s390x.rpm
RedHat7s390xpython-perf< 4.14.0-115.2.2.el7apython-perf-4.14.0-115.2.2.el7a.s390x.rpm
RedHat7s390xkernel-debug-devel< 4.14.0-115.2.2.el7akernel-debug-devel-4.14.0-115.2.2.el7a.s390x.rpm
RedHat7s390xpython-perf-debuginfo< 4.14.0-115.2.2.el7apython-perf-debuginfo-4.14.0-115.2.2.el7a.s390x.rpm
RedHat7aarch64perf-debuginfo< 4.14.0-115.2.2.el7aperf-debuginfo-4.14.0-115.2.2.el7a.aarch64.rpm
RedHat7ppc64leperf< 4.14.0-115.2.2.el7aperf-4.14.0-115.2.2.el7a.ppc64le.rpm
RedHat7aarch64kernel-debug-devel< 4.14.0-115.2.2.el7akernel-debug-devel-4.14.0-115.2.2.el7a.aarch64.rpm
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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

43.6%

JSON
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